The unofficial party cup may have a deeper meaning within their design. There is a rumour going around Facebook that those three lines on a Red Solo Cup actualy mean something.

Thats right, Red Solo cups are actually smarter than you realized.  Those lines that wrap around the different sections of the cup aren't just for decoration they are actually measurements.

The first line above the bottom is said to be the one-ounce mark, if you're having liquor.  The next line is at five ounces, if you want to be classy and drink wine from your red plastic cup.  And the third line up is at the 12-ounce mark, for one full beer.

Well I hate to tell you that according to Snopes.com, it's just an urban legend.  They contacted the Dart Container Corporation, the company that actually makes the Red Solo, and they said, quote, "The lines on our Party Cups are designed for functional performance, and are not measurement lines. That means that they serve as a texture for your drunk ass to hold onto and not drop you cocktail or beer all the time!

Story Courtesy of BuzzFeed